Dorman

DORMAN 674-731 LEFT SIDE EXHAUST MANIFOLD

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Promotional items (free items) are subject to shipping and/or customs fees. Additional charges for customs clearance must be paid by you, the recipient; Street Diesel Power has no control over these charges and can't predict what they may be. Customs policies vary widely from country, state and city. You should contact your local customs office for more information. When customs clearance procedures are required, it can cause delays beyond our original delivery estimates.

FREE SHIPPING POLICY

Street Diesel Power offers free economy shipping for orders over $50 excluding truck freight (transmissions, cylinder heads, etc). For truck freight items, return shipping is included in the price calculated during checkout. For non-truck freight shipping, core return costs are the responsibility of the customer.

Our free shipping policy excludes shipments to Hawaii or Alaska, shipping addresses outside of the U.S., normal ground, three day select, two day air, overnight and overnight AM shipments. Transit time is typically 3-6 business days for economy shipping. We will email tracking numbers upon shipment for your convenience.

The recipient of an international Canadian shipment may be subject to import taxes, customs duties and fees, which are levied once a shipment reaches the recipient's country.

Additional charges for customs clearance must be paid by you, the recipient; Street Diesel Power has no control over these charges and can't predict what they may be. Customs policies vary widely from city and province. You should contact your local customs office for more information. When customs clearance procedures are required, it can cause delays beyond our original delivery estimates.

ATS LABOR AND SHIPPING WARRANTY

The ATS Labor and Shipping Warranty is offered by ATS Diesel Performance for transmission packages and transmission-only selections. This services goes above and beyond the standard 5 year / 500,000 mile parts warranty. You may choose labor and shipping coverage for the 1st year, 1st and 2nd year or 1st, 2nd, and 3rd year of ownership.

At the time of order, Street Diesel Power notifies ATS Diesel Performance that you purchased this option. This is saved with your warranty information so ATS can access it in the event of a future warranty item. Your receipt from Street Diesel Power will also indicate you selected this option.

This labor reimbursement and shipping warranty includes:

Ground shipping of the product(s) to your destination

Valve bodies or other internal electronics, either replacement or adjustment will be $150

Replacement of transmission and/or torque converter will be $400

External Electronics, replacement will be $50

Diagnostics, which includes Scanning for codes, checking fluid level and condition, test-driving and pressure testing, will be $90

All other labor operations will be at the sole discretion of ATS Diesel.

CANADIAN ORDERS, DUTIES & TAXES

The recipient of an international Canadian shipment may be subject to import taxes, customs duties and fees, which are levied once a shipment reaches the recipient's country.

Additional charges for customs clearance must be paid by you, the recipient; Street Diesel Power has no control over these charges and can't predict what they may be. Customs policies vary widely from city and province. You should contact your local customs office for more information. When customs clearance procedures are required, it can cause delays beyond our original delivery estimates.

Some manufacturers will only ship within the U.S. If you order a product that is not available for shipment to Canada, we will notify you via email. For manufacturers who will ship to Canada, they require 24 hours to estimate shipping costs. Street Diesel Power will notify you of the shipping costs before processing your order.

The Street Diesel Power Return Policy is:

Customers are 100% responsible for all shipping costs on returned items. If a customer returns an item and did not originally pay shipping costs, the original shipping cost incurred by Street Diesel Power will be deducted on your refund.

Credit will be issued after the product is inspected by the manufacturer and deemed acceptable.

All returns will be subject to a restocking fee - which varies from manufacturer to manufacturer.

Shipments refused by you (the Customer) and returned back to the manufacturer will carry an automatic 25% re-stocking fee deducted from the total credit owed.

Any orders cancelled after 24 hours and the products have not shipped, are subject to a 3-5% Processing fee.

Refunds will not be issued in the following situations:

Product has been installed and or is in used condition.

Product has been damaged from an attempt to install or improper installation.

Custom Tuners are not available for return.

Product Warranties

Any product that carries a manufacturer warranty must be warrantied through its manufacturer. Installed components which have failed must be shipped back to the manufacturer for inspection before replacement. Street Diesel Power is not responsible for shipping products to manufacturers for review.

Who are you guys?

Street Diesel Power specializes in not just selling products, but helping you make educated decisions on modifying your truck. Unfortunately, the rest of the diesel industry is not built on this foundation. We have chosen to focus on specific products with proven performance, warranties and results. This allows us to accurately tell you what the product will do, how it will perform and what to expect. As a result, our site is smaller than some of the other big box stores. We did this buy design. Instead of having thousands of products on our site, with an under-experienced phone staff answering the calls, we chose the opposite.

When you contact Street Diesel Power, you are speaking with its Co-Founder who has spent the last 8 years in the industry - at its highest levels. This experience and know-how is passed along to you to choose the right products, at the right price. No games, no pushing you into products you don't want. Just honest answers, stellar customer service and a place you can come back to for your diesel performance needs.

Where are you located?

We are located in Arvada, CO and have distribution centers from coast to coast. Because of this, we are able to get products to you faster, and cheaper, than the competition.

When will my order arrive?

Most products are in-stock all the time. Build-to-order products, like transmissions or custom turbo kits, can have 1-2 week lead times.

What is a core charge?

A core charge is a refundable deposit required by manufacturers to ensure factory parts are returned to them. Many products utilize factory components in a build or product. The core charge ensures the manufacturer has a steady supply of cores to keep building the product. Without a core charge, manufacturers would be required to cast, machine or design intricate and complex parts. This cost would price many products out of the market.

Is there a warranty on parts?

Each part is warrantied by its manufacturer. In the event a particular product does not carry a warranty, this is noted on their site, literature and installation instructions. Please contact us to learn more about manufacturer warranties and requirements.

How can I become a dealer?

If you are interested in joining the Street Diesel Power team as an official dealer, please fill out the pre-application here. We will review your information and contact you to setup a dealer account. This dealer account will provide discounts on popular products, drop-ship services and technical assistance.

Do you price match?

We not only price match, we price beat. Email sales@streetdieselpower.com with a copy of a quote on any product we sell. We will beat that price. Please ensure the product quoted is correct for your year, make and model.

Do you accept returns?

Returns are accepted and require an RMA number. To receive an RMA number, contact Street Diesel Power. Each manufacturer has different re-stocking fees. They vary between 5%-20%. This amount is kept by the manufacturer to inspect and re-stock the product. Your refund would be for the purchase amount, minus shipping (both ways) and the applicable re-stock fee.

Can I get a package deal?

Absolutely! Visit our Package Deal page and fill out the form. We will reply back with the cheapest price on the parts you selected.

Can I get a catalog?

To offer you the lowest price possible, we have created a website with tons of information, pricing and technical tips. The best source for product information is our website. However, some manufacturers will include their specific catalog with their products.

Will I enjoy my shopping experience?

Street Diesel Power guarantees a no-hassle, friendly and informative shopping experience. If we don't know the answer to your question, we will find out - whether you purchase from us or not. Sit back, browse our site, and enjoy the best products from leading manufacturers for YOUR specific truck.

Is it easy to access tracking information for my order?

Once your order ships, Street Diesel Power will automatically email your tracking number to you.

Is it easy to return a product?

Please contact Street Diesel Power to initiate a return. We will obtain an RMA number from the manufacturer for you. With this number, you can return the product for inspection and credit.

How does your online store work?

Street Diesel Power organizes products by make and year of diesel pickup truck. Next, customers can select specific product categories, such as transmissions or gauges or intercoolers. In each category, Street Diesel Power lists options and pricing. After adding a product to your cart, you will proceed to the checkout process. After filling in this information and making the purchase, your order is processed and payment method charged. The order is fulfilled by the manufacturer, processed for shipment and sent via USPS, UPS, FedEx or truck freight. Street Diesel Power will provide the tracking number to you and your order will arrive shortly!

What do I need for an Exhaust brake installation?

All exhaust brake kits ship complete with the wiring, hoses, mounting group and any needed electronics.

What Dodge torque converter should I use?

Multi-clutch converters provide the longest life and most power transfer on light duty trucks. The best converter we have come across in our experience is the ATS Five Star Converter. From stock to over 2000 ft/lbs of torque, this converter has done it all. For price savings, we also offer the ATS TripleLok and ATS Billet Single Disc converter.

When do I need gauges?

Gauges are needed on stock trucks. As trucks have gotten more advanced, the Big 3 have recognized the need for owners to monitor engine and transmission vitals. The problem is, they stop short of a full set of diagnostic gauges. Some will have engine and boost gauges, but usually leave out EGT's, rail pressure, fuel pressure and other key vitals. As a truck is modified, monitoring these signs becomes even more important to avoid engine, turbo or transmission damage.

Which Dodge clutch do I need?

In general, a stock to very mild truck simply needs an organic/feramic clutch kit with upgraded hydraulics. Once power reaches 500 hp, we are firm believers in dual disc clutches with various pressure plates to remain reliable under increased torque and towing weight.

Why do I need to upgrade the exhaust?

Stock exhausts are designed to be quiet, cheap and support stock power. As power is added to the motor, stock exhaust systems fail to quickly evacuate the gases and heat can become an issue. Aftermarket exhaust systems are offered in aluminized and stainless steel, as well as in larger diameters. This increased diameter helps lower EGT's and support higher power levels.

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2001-2015 GM 6.6L Duramax

The Dorman 674-731 Left Side Exhaust Manifold is a direct replacement for your 2001-2015 GM 6.6L Duramax. This manifold features a "full bore" design that isn't kinked like the factory manifold on the 2001-2010 models. This makes it a popular upgrade for the earlier trucks as the increased flow will "balance" out the engine helping with throttle response and better overall performance.

FEATURES:

Direct Fit

Upgrade On 2001-2010 Duramax Trucks

Replaces GM OE Part#: 12624684, 12637647, 97224587

2011-2015 LML Note:Because this is the factory manifold that comes on the 2011-2015 LML Duramax it is simply a replacement part for the LML and not an upgrade like the 2001-2010 trucks with the "kinked" exhaust manifold.